TOPSwitch-JX
Integrated Off-Line Switcher with EcoSmart® Technology for Highly Efficient Power Supplies
Typical Flyback Application
Description
TOPSwitch-JX cost effectively incorporates a 725 V power MOSFET, high voltage switched current source, multi-mode PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.
Product Highlights
EcoSmart® - Energy Efficient
- Energy efficient over entire load range
- No-load consumption below 70 mW at 230 VAC achievable
- Up to 750 mW standby output power for 1 W input at 230 VAC
High Design Flexibility for Low System Cost
- Multi-mode PWM control maximizes efficiency at all loads
- 132 kHz operation reduces transformer and power supply size
- 66 kHz option for highest efficiency requirements
- Accurate programmable current limit
- Optimized line feed-forward for line ripple rejection
- Frequency jittering reduces EMI filter cost
- Fully integrated soft-start for minimum startup stress
- 725 V rated MOSFET
- Simplifies meeting design derating requirements
Extensive Protection Features
- Auto-restart limits power delivery to <3% during overload faults
- Output short-circuit protection (SCP)
- Output overcurrent protection (OCP)
- Output overload protection (OPP)
- Output overvoltage protection (OVP)
- User programmable for hysteretic/latching shutdown
- Simple fast AC reset
- Primary or secondary sensed
- Line undervoltage (UV) detection prevents turn-off glitches
- Line overvoltage (OV) shutdown extends line surge withstand
- Accurate thermal shutdown with large hysteresis (OTP)
Advanced Package Options
- eDIP™-12 package:
- Low profile horizontal orientation for ultra-slim designs
- Heat transfer to both PCB and heat sink
- Optional external heat sink provides thermal impedance equivalent to a TO-220
- eSIP®-7C package:
- Vertical orientation for minimum PCB footprint
- Simple heat sink mounting using clip provides thermal impedance equivalent to a TO-220
- eSOP®-12 package:
- 66 W universal input output power capability
- Low profile surface mounted for ultra-slim designs
- Heat transfer to PCB via exposed pad and SOURCE pins
- Supports wave or reflow soldering
| Output Power (Watts) | |||||
|---|---|---|---|---|---|
| PRODUCT5 | Metal Heat Sink1 | ||||
| 230 VAC ±15%4 | 85-265 VAC | ||||
| Adapt.2 | Open3 Frame | Adapt.2 | Open3 Frame | ||
| TOP264VG/EG | 30 W | 62 W | 20 W | 43 W | |
| TOP265VG/EG | 40 W | 81 W | 26 W | 57 W | |
| TOP266VG/EG | 60 W | 119 W | 40 W | 86 W | |
| TOP267VG/EG | 85 W | 137 W | 55 W | 103 W | |
| TOP268VG/EG | 105 W | 148 W | 70 W | 112 W | |
| TOP269VG/EG | 128 W | 162 W | 80 W | 120 W | |
| TOP270VG/EG | 147 W | 190 W | 93 W | 140 W | |
| TOP271VG/EG | 177 W | 244 W | 118 W | 177 W | |
| PRODUCT5 | PCB Copper Area1 | ||||
| 230 VAC ±15%4 | 85-265 VAC | ||||
| Adapt.2 | Open3 Frame | Adapt.2 | Open3 Frame | ||
| TOP264VG | 21 W | 34 W | 12 W | 22.5 W | |
| TOP264KG | 30 W | 49 W | 16 W | 30 W | |
| TOP265VG | 22.5 W | 36 W | 15 W | 25 W | |
| TOP265KG | 33 W | 53 W | 20 W | 34 W | |
| TOP266VG | 24 W | 39 W | 17 W | 28.5 W | |
| TOP266KG | 36 W | 58 W | 23 W | 39 W | |
| TOP267VG | 27.5 W | 44 W | 19 W | 32 W | |
| TOP267KG | 40 W | 65 W | 26 W | 45 W | |
| TOP268VG | 30 W | 48 W | 21.5 W | 36 W | |
| TOP268KG | 46 W | 73 W | 30 W | 50 W | |
| TOP269VG | 32 W | 51 W | 22.5 W | 37.5 W | |
| TOP269KG | 50 W | 81 W | 33 W | 55 W | |
| TOP270VG | 34 W | 55 W | 24.5 W | 41 W | |
| TOP270KG | 56 W | 91 W | 36 W | 60 W | |
| TOP271VG | 36 W | 59 W | 26 W | 43 W | |
| TOP271KG | 63 W | 102 W | 40 W | 66 W | |
Notes:
- See Key Application Considerations section for more details.
- Minimum continuous power in a typical non-ventilated enclosed adapter measured at +50 °C ambient temperature.
- Minimum continuous power in an open frame design at +50 °C ambient temperature.
- 230 VAC or 110/115 VAC with doubler.
- Packages:E: eSIP-7C, V: eDIP-12, K: eSOP-12. See part ordering information.
| Product Documents | |
|---|---|
| Application Note |  |
| Package Information | |
| Data Sheet | |
| Reference Designs* | |
|---|---|
| RDK-242 | Reference Design Report for a 30 W Supply Using TOPSwitch®-JX TOP266VG, 85 VAC – 264 VAC Input; 12 V, 2.5 A Output |
*DAKs/RDKs include a working power supply, sample devices, unpopulated pcb, data sheet, comprehensive engineering report, PI Expert design software and other related documentation.
Visit the Design Examples page for additional circuits using this product family.
